* Where do head.S initialize UART?
@ 2000-07-31 12:54 Pei-Jie Hong
2000-07-31 13:05 ` Gabriel Paubert
0 siblings, 1 reply; 3+ messages in thread
From: Pei-Jie Hong @ 2000-07-31 12:54 UTC (permalink / raw)
To: linuxppc-embedded
I am porting Linux to a PowerPC VME board. I am now tracing head.S. Can
anyone
tell me where do head.S start to initialize the UART? Thanks.
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* Re: Where do head.S initialize UART?
2000-07-31 12:54 Where do head.S initialize UART? Pei-Jie Hong
@ 2000-07-31 13:05 ` Gabriel Paubert
2000-08-01 3:24 ` ligl
0 siblings, 1 reply; 3+ messages in thread
From: Gabriel Paubert @ 2000-07-31 13:05 UTC (permalink / raw)
To: Pei-Jie Hong; +Cc: linuxppc-embedded
On Mon, 31 Jul 2000, Pei-Jie Hong wrote:
>
> I am porting Linux to a PowerPC VME board. I am now tracing head.S. Can
> anyone
> tell me where do head.S start to initialize the UART? Thanks.
It does not, the UART basic setup should be done by the Firmware or
perhaps by the initial bootloader. But otherwise it is postponed until
the console is initialized.
Regards,
Gabriel.
P.S: which VME board ? (I have a few Motorola's ones around 2400, and
2600)
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* Re: Where do head.S initialize UART?
2000-07-31 13:05 ` Gabriel Paubert
@ 2000-08-01 3:24 ` ligl
0 siblings, 0 replies; 3+ messages in thread
From: ligl @ 2000-08-01 3:24 UTC (permalink / raw)
To: Gabriel Paubert; +Cc: linuxppc-embedded
initialize the UART at arch/ppc/8xx_io/uart.c
rs_8xx_init()
>
> On Mon, 31 Jul 2000, Pei-Jie Hong wrote:
>
> >
> > I am porting Linux to a PowerPC VME board. I am now tracing head.S. Can
> > anyone
> > tell me where do head.S start to initialize the UART? Thanks.
>
> It does not, the UART basic setup should be done by the Firmware or
> perhaps by the initial bootloader. But otherwise it is postponed until
> the console is initialized.
>
> Regards,
> Gabriel.
>
>
> P.S: which VME board ? (I have a few Motorola's ones around 2400, and
> 2600)
>
>
>
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
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2000-07-31 12:54 Where do head.S initialize UART? Pei-Jie Hong
2000-07-31 13:05 ` Gabriel Paubert
2000-08-01 3:24 ` ligl
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